85208538 has 16 divisors (see below), whose sum is σ = 171311616. Its totient is φ = 28253760.

The previous prime is 85208533. The next prime is 85208551. The reversal of 85208538 is 83580258.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 85208496 and 85208505.

It is not an unprimeable number, because it can be changed into a prime (85208533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36031 + ... + 38322.

It is an arithmetic number, because the mean of its divisors is an integer number (10706976).

Almost surely, 2^85208538 is an apocalyptic number.

85208538 is an abundant number, since it is smaller than the sum of its proper divisors (86103078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85208538 is a wasteful number, since it uses less digits than its factorization.

85208538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74549.

The product of its (nonzero) digits is 76800, while the sum is 39.

The square root of 85208538 is about 9230.8470900563. The cubic root of 85208538 is about 440.0422445665.

The spelling of 85208538 in words is "eighty-five million, two hundred eight thousand, five hundred thirty-eight".